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                                <h1 id="django&#x5165;&#x95E8;&#x4E0E;&#x5B9E;&#x8DF5;-&#x7B2C;19&#x7AE0;&#xFF1A;&#x4E3B;&#x9898;&#x56DE;&#x590D;">Django&#x5165;&#x95E8;&#x4E0E;&#x5B9E;&#x8DF5;-&#x7B2C;19&#x7AE0;&#xFF1A;&#x4E3B;&#x9898;&#x56DE;&#x590D;</h1>
<p>&#x73B0;&#x5728;&#x8BA9;&#x6211;&#x4EEC;&#x6765;&#x5B9E;&#x73B0;&#x56DE;&#x590D;&#x5E16;&#x5B50;&#x7684;&#x529F;&#x80FD;&#xFF0C;&#x4EE5;&#x4FBF;&#x6211;&#x4EEC;&#x53EF;&#x4EE5;&#x6DFB;&#x52A0;&#x66F4;&#x591A;&#x7684;&#x6570;&#x636E;&#x548C;&#x6539;&#x8FDB;&#x529F;&#x80FD;&#x5B9E;&#x73B0;&#x4E0E;&#x5355;&#x5143;&#x6D4B;&#x8BD5;&#x3002;</p>
<p><img src="statics/5-9.png" alt="5-9.png"></p>
<p>&#x6DFB;&#x52A0;&#x65B0;&#x7684;URL&#x8DEF;&#x7531;&#xFF1A;</p>
<p><strong>myproject/urls.py</strong>(<a href="https://gist.github.com/vitorfs/71a5f9f39202edfbab9bacf11844548b#file-urls-py-L39" target="_blank">&#x5B8C;&#x6574;&#x4EE3;&#x7801;</a>)</p>
<pre><code class="lang-python">url(<span class="hljs-string">r&apos;^boards/(?P&lt;pk&gt;\d+)/topics/(?P&lt;topic_pk&gt;\d+)/reply/$&apos;</span>, views.reply_topic, name=<span class="hljs-string">&apos;reply_topic&apos;</span>),
</code></pre>
<p>&#x7ED9;&#x56DE;&#x5E16;&#x521B;&#x5EFA;&#x4E00;&#x4E2A;&#x65B0;&#x7684;&#x8868;&#x5355;&#xFF1A;</p>
<p><strong>boards/forms.py</strong> (<a href="https://gist.github.com/vitorfs/3dd5ed2b3e27b4c12886e9426acf8fda#file-forms-py-L20" target="_blank">&#x5B8C;&#x6574;&#x4EE3;&#x7801;</a>)</p>
<pre><code class="lang-python"><span class="hljs-keyword">from</span> django <span class="hljs-keyword">import</span> forms
<span class="hljs-keyword">from</span> .models <span class="hljs-keyword">import</span> Post

<span class="hljs-class"><span class="hljs-keyword">class</span> <span class="hljs-title">PostForm</span><span class="hljs-params">(forms.ModelForm)</span>:</span>
    <span class="hljs-class"><span class="hljs-keyword">class</span> <span class="hljs-title">Meta</span>:</span>
        model = Post
        fields = [<span class="hljs-string">&apos;message&apos;</span>, ]
</code></pre>
<p>&#x4E00;&#x4E2A;&#x65B0;&#x7684;&#x53D7;<code>@login_required</code>&#x4FDD;&#x62A4;&#x7684;&#x89C6;&#x56FE;&#xFF0C;&#x4EE5;&#x53CA;&#x7B80;&#x5355;&#x7684;&#x8868;&#x5355;&#x5904;&#x7406;&#x903B;&#x8F91;</p>
<p><strong>boards/views.py</strong>(<a href="https://gist.github.com/vitorfs/9e3811d9b11958b4106d99d9243efa71#file-views-py-L45" target="_blank">&#x5B8C;&#x6574;&#x4EE3;&#x7801;</a>)</p>
<pre><code class="lang-python"><span class="hljs-keyword">from</span> django.contrib.auth.decorators <span class="hljs-keyword">import</span> login_required
<span class="hljs-keyword">from</span> django.shortcuts <span class="hljs-keyword">import</span> get_object_or_404, redirect, render
<span class="hljs-keyword">from</span> .forms <span class="hljs-keyword">import</span> PostForm
<span class="hljs-keyword">from</span> .models <span class="hljs-keyword">import</span> Topic

<span class="hljs-meta">@login_required</span>
<span class="hljs-function"><span class="hljs-keyword">def</span> <span class="hljs-title">reply_topic</span><span class="hljs-params">(request, pk, topic_pk)</span>:</span>
    topic = get_object_or_404(Topic, board__pk=pk, pk=topic_pk)
    <span class="hljs-keyword">if</span> request.method == <span class="hljs-string">&apos;POST&apos;</span>:
        form = PostForm(request.POST)
        <span class="hljs-keyword">if</span> form.is_valid():
            post = form.save(commit=<span class="hljs-keyword">False</span>)
            post.topic = topic
            post.created_by = request.user
            post.save()
            <span class="hljs-keyword">return</span> redirect(<span class="hljs-string">&apos;topic_posts&apos;</span>, pk=pk, topic_pk=topic_pk)
    <span class="hljs-keyword">else</span>:
        form = PostForm()
    <span class="hljs-keyword">return</span> render(request, <span class="hljs-string">&apos;reply_topic.html&apos;</span>, {<span class="hljs-string">&apos;topic&apos;</span>: topic, <span class="hljs-string">&apos;form&apos;</span>: form})
</code></pre>
<p>&#x73B0;&#x5728;&#x6211;&#x4EEC;&#x518D;&#x4F1A;&#x5230;<strong>new_topic</strong>&#x89C6;&#x56FE;&#x51FD;&#x6570;&#xFF0C;&#x66F4;&#x65B0;&#x91CD;&#x5B9A;&#x5411;&#x5730;&#x5740;&#xFF08;&#x6807;&#x8BB0;&#x4E3A; <strong>#TODO</strong> &#x7684;&#x5730;&#x65B9;&#xFF09;</p>
<pre><code class="lang-python"><span class="hljs-meta">@login_required</span>
<span class="hljs-function"><span class="hljs-keyword">def</span> <span class="hljs-title">new_topic</span><span class="hljs-params">(request, pk)</span>:</span>
    board = get_object_or_404(Board, pk=pk)
    <span class="hljs-keyword">if</span> request.method == <span class="hljs-string">&apos;POST&apos;</span>:
        form = NewTopicForm(request.POST)
        <span class="hljs-keyword">if</span> form.is_valid():
            topic = form.save(commit=<span class="hljs-keyword">False</span>)
            <span class="hljs-comment"># code suppressed ...</span>
            <span class="hljs-keyword">return</span> redirect(<span class="hljs-string">&apos;topic_posts&apos;</span>, pk=pk, topic_pk=topic.pk)  <span class="hljs-comment"># &lt;- here</span>
    <span class="hljs-comment"># code suppressed ...</span>
</code></pre>
<p>&#x503C;&#x5F97;&#x6CE8;&#x610F;&#x7684;&#x662F;&#xFF1A;&#x5728;&#x89C6;&#x56FE;&#x51FD;&#x6570;<strong>replay_topic</strong>&#x4E2D;&#xFF0C;&#x6211;&#x4EEC;&#x4F7F;&#x7528;<code>topic_pk</code>&#xFF0C;&#x56E0;&#x4E3A;&#x6211;&#x4EEC;&#x5F15;&#x7528;&#x7684;&#x662F;&#x51FD;&#x6570;&#x7684;&#x5173;&#x952E;&#x5B57;&#x53C2;&#x6570;&#xFF0C;&#x800C;&#x5728;<strong>new_topic</strong>&#x89C6;&#x56FE;&#x4E2D;&#xFF0C;&#x6211;&#x4EEC;&#x4F7F;&#x7528;&#x7684;&#x662F;<code>topic.pk</code>&#xFF0C;&#x56E0;&#x4E3A;<code>topic</code>&#x662F;&#x4E00;&#x4E2A;&#x5BF9;&#x8C61;&#xFF08;Topic&#x6A21;&#x578B;&#x7684;&#x5B9E;&#x4F8B;&#x5BF9;&#x8C61;&#xFF09;&#xFF0C;<code>.pk</code>&#x662F;&#x8FD9;&#x4E2A;&#x5B9E;&#x4F8B;&#x5BF9;&#x8C61;&#x7684;&#x4E00;&#x4E2A;&#x5C5E;&#x6027;&#xFF0C;&#x8FD9;&#x4E24;&#x79CD;&#x7EC6;&#x5FAE;&#x7684;&#x5DEE;&#x522B;&#xFF0C;&#x5176;&#x5B9E;&#x533A;&#x522B;&#x5F88;&#x5927;&#xFF0C;&#x522B;&#x641E;&#x6DF7;&#x4E86;&#x3002;</p>
<p>&#x56DE;&#x590D;&#x9875;&#x9762;&#x6A21;&#x7248;&#x7684;&#x4E00;&#x4E2A;&#x7248;&#x672C;&#xFF1A;</p>
<p><strong>templates/reply_topic.html</strong></p>
<pre><code class="lang-html">
{% extends &apos;base.html&apos; %}

{% load static %}

{% block title %}Post a reply{% endblock %}

{% block breadcrumb %}
  <span class="hljs-tag">&lt;<span class="hljs-name">li</span> <span class="hljs-attr">class</span>=<span class="hljs-string">&quot;breadcrumb-item&quot;</span>&gt;</span><span class="hljs-tag">&lt;<span class="hljs-name">a</span> <span class="hljs-attr">href</span>=<span class="hljs-string">&quot;{% url &apos;home&apos; %}&quot;</span>&gt;</span>Boards<span class="hljs-tag">&lt;/<span class="hljs-name">a</span>&gt;</span><span class="hljs-tag">&lt;/<span class="hljs-name">li</span>&gt;</span>
  <span class="hljs-tag">&lt;<span class="hljs-name">li</span> <span class="hljs-attr">class</span>=<span class="hljs-string">&quot;breadcrumb-item&quot;</span>&gt;</span><span class="hljs-tag">&lt;<span class="hljs-name">a</span> <span class="hljs-attr">href</span>=<span class="hljs-string">&quot;{% url &apos;board_topics&apos; topic.board.pk %}&quot;</span>&gt;</span>{{ topic.board.name }}<span class="hljs-tag">&lt;/<span class="hljs-name">a</span>&gt;</span><span class="hljs-tag">&lt;/<span class="hljs-name">li</span>&gt;</span>
  <span class="hljs-tag">&lt;<span class="hljs-name">li</span> <span class="hljs-attr">class</span>=<span class="hljs-string">&quot;breadcrumb-item&quot;</span>&gt;</span><span class="hljs-tag">&lt;<span class="hljs-name">a</span> <span class="hljs-attr">href</span>=<span class="hljs-string">&quot;{% url &apos;topic_posts&apos; topic.board.pk topic.pk %}&quot;</span>&gt;</span>{{ topic.subject }}<span class="hljs-tag">&lt;/<span class="hljs-name">a</span>&gt;</span><span class="hljs-tag">&lt;/<span class="hljs-name">li</span>&gt;</span>
  <span class="hljs-tag">&lt;<span class="hljs-name">li</span> <span class="hljs-attr">class</span>=<span class="hljs-string">&quot;breadcrumb-item active&quot;</span>&gt;</span>Post a reply<span class="hljs-tag">&lt;/<span class="hljs-name">li</span>&gt;</span>
{% endblock %}

{% block content %}

  <span class="hljs-tag">&lt;<span class="hljs-name">form</span> <span class="hljs-attr">method</span>=<span class="hljs-string">&quot;post&quot;</span> <span class="hljs-attr">class</span>=<span class="hljs-string">&quot;mb-4&quot;</span>&gt;</span>
    {% csrf_token %}
    {% include &apos;includes/form.html&apos; %}
    <span class="hljs-tag">&lt;<span class="hljs-name">button</span> <span class="hljs-attr">type</span>=<span class="hljs-string">&quot;submit&quot;</span> <span class="hljs-attr">class</span>=<span class="hljs-string">&quot;btn btn-success&quot;</span>&gt;</span>Post a reply<span class="hljs-tag">&lt;/<span class="hljs-name">button</span>&gt;</span>
  <span class="hljs-tag">&lt;/<span class="hljs-name">form</span>&gt;</span>

  {% for post in topic.posts.all %}
    <span class="hljs-tag">&lt;<span class="hljs-name">div</span> <span class="hljs-attr">class</span>=<span class="hljs-string">&quot;card mb-2&quot;</span>&gt;</span>
      <span class="hljs-tag">&lt;<span class="hljs-name">div</span> <span class="hljs-attr">class</span>=<span class="hljs-string">&quot;card-body p-3&quot;</span>&gt;</span>
        <span class="hljs-tag">&lt;<span class="hljs-name">div</span> <span class="hljs-attr">class</span>=<span class="hljs-string">&quot;row mb-3&quot;</span>&gt;</span>
          <span class="hljs-tag">&lt;<span class="hljs-name">div</span> <span class="hljs-attr">class</span>=<span class="hljs-string">&quot;col-6&quot;</span>&gt;</span>
            <span class="hljs-tag">&lt;<span class="hljs-name">strong</span> <span class="hljs-attr">class</span>=<span class="hljs-string">&quot;text-muted&quot;</span>&gt;</span>{{ post.created_by.username }}<span class="hljs-tag">&lt;/<span class="hljs-name">strong</span>&gt;</span>
          <span class="hljs-tag">&lt;/<span class="hljs-name">div</span>&gt;</span>
          <span class="hljs-tag">&lt;<span class="hljs-name">div</span> <span class="hljs-attr">class</span>=<span class="hljs-string">&quot;col-6 text-right&quot;</span>&gt;</span>
            <span class="hljs-tag">&lt;<span class="hljs-name">small</span> <span class="hljs-attr">class</span>=<span class="hljs-string">&quot;text-muted&quot;</span>&gt;</span>{{ post.created_at }}<span class="hljs-tag">&lt;/<span class="hljs-name">small</span>&gt;</span>
          <span class="hljs-tag">&lt;/<span class="hljs-name">div</span>&gt;</span>
        <span class="hljs-tag">&lt;/<span class="hljs-name">div</span>&gt;</span>
        {{ post.message }}
      <span class="hljs-tag">&lt;/<span class="hljs-name">div</span>&gt;</span>
    <span class="hljs-tag">&lt;/<span class="hljs-name">div</span>&gt;</span>
  {% endfor %}

{% endblock %}
</code></pre>
<p><img src="statics/5-10.png" alt="5-10.png"></p>
<p>&#x63D0;&#x4EA4;&#x56DE;&#x590D;&#x4E4B;&#x540E;&#xFF0C;&#x7528;&#x6237;&#x4F1A;&#x8DF3;&#x56DE;&#x4E3B;&#x9898;&#x7684;&#x56DE;&#x590D;&#x5217;&#x8868;&#xFF1A;</p>
<p><img src="statics/5-11.png" alt="5-11.png"></p>
<p>&#x6211;&#x4EEC;&#x53EF;&#x4EE5;&#x6539;&#x53D8;&#x7B2C;&#x4E00;&#x6761;&#x5E16;&#x5B50;&#x7684;&#x6837;&#x5F0F;&#xFF0C;&#x4F7F;&#x5F97;&#x5B83;&#x5728;&#x9875;&#x9762;&#x4E0A;&#x66F4;&#x7A81;&#x51FA;&#xFF1A;</p>
<p><strong>templates/topic_posts.html</strong>(<a href="https://gist.github.com/vitorfs/3e4ad94ac3ae9d72194af4006d4aeaff#file-topic_posts-html-L20" target="_blank">&#x5B8C;&#x6574;&#x4EE3;&#x7801;</a>)</p>
<pre><code class="lang-html">
{% for post in topic.posts.all %}
  <span class="hljs-tag">&lt;<span class="hljs-name">div</span> <span class="hljs-attr">class</span>=<span class="hljs-string">&quot;card mb-2 {% if forloop.first %}border-dark{% endif %}&quot;</span>&gt;</span>
    {% if forloop.first %}
      <span class="hljs-tag">&lt;<span class="hljs-name">div</span> <span class="hljs-attr">class</span>=<span class="hljs-string">&quot;card-header text-white bg-dark py-2 px-3&quot;</span>&gt;</span>{{ topic.subject }}<span class="hljs-tag">&lt;/<span class="hljs-name">div</span>&gt;</span>
    {% endif %}
    <span class="hljs-tag">&lt;<span class="hljs-name">div</span> <span class="hljs-attr">class</span>=<span class="hljs-string">&quot;card-body p-3&quot;</span>&gt;</span>
      <span class="hljs-comment">&lt;!-- code suppressed --&gt;</span>
    <span class="hljs-tag">&lt;/<span class="hljs-name">div</span>&gt;</span>
  <span class="hljs-tag">&lt;/<span class="hljs-name">div</span>&gt;</span>
{% endfor %}
</code></pre>
<p><img src="statics/5-12.png" alt="5-12.png"></p>
<p>&#x73B0;&#x5728;&#x5BF9;&#x4E8E;&#x6D4B;&#x8BD5;&#xFF0C;&#x5DF2;&#x7ECF;&#x5B9E;&#x73B0;&#x6807;&#x51C6;&#x5316;&#x6D41;&#x7A0B;&#x4E86;&#xFF0C;&#x5C31;&#x50CF;&#x6211;&#x4EEC;&#x8FC4;&#x4ECA;&#x4E3A;&#x6B62;&#x6240;&#x505A;&#x7684;&#x4E00;&#x6837;&#x3002; &#x5728;boards/tests &#x76EE;&#x5F55;&#x4E2D;&#x521B;&#x5EFA;&#x4E00;&#x4E2A;&#x65B0;&#x6587;&#x4EF6; <strong>test_view_reply_topic.py</strong>&#xFF1A;</p>
<p><strong>boards/tests/test_view_reply_topic.py</strong> (<a href="https://gist.github.com/vitorfs/7148fcb95075fb6641e638214b751cf1" target="_blank">&#x5B8C;&#x6574;&#x4EE3;&#x7801;</a>)</p>
<pre><code class="lang-python"><span class="hljs-keyword">from</span> django.contrib.auth.models <span class="hljs-keyword">import</span> User
<span class="hljs-keyword">from</span> django.test <span class="hljs-keyword">import</span> TestCase
<span class="hljs-keyword">from</span> django.urls <span class="hljs-keyword">import</span> reverse
<span class="hljs-keyword">from</span> ..models <span class="hljs-keyword">import</span> Board, Post, Topic
<span class="hljs-keyword">from</span> ..views <span class="hljs-keyword">import</span> reply_topic

<span class="hljs-class"><span class="hljs-keyword">class</span> <span class="hljs-title">ReplyTopicTestCase</span><span class="hljs-params">(TestCase)</span>:</span>
    <span class="hljs-string">&apos;&apos;&apos;
    Base test case to be used in all `reply_topic` view tests
    &apos;&apos;&apos;</span>
    <span class="hljs-function"><span class="hljs-keyword">def</span> <span class="hljs-title">setUp</span><span class="hljs-params">(self)</span>:</span>
        self.board = Board.objects.create(name=<span class="hljs-string">&apos;Django&apos;</span>, description=<span class="hljs-string">&apos;Django board.&apos;</span>)
        self.username = <span class="hljs-string">&apos;john&apos;</span>
        self.password = <span class="hljs-string">&apos;123&apos;</span>
        user = User.objects.create_user(username=self.username, email=<span class="hljs-string">&apos;john@doe.com&apos;</span>, password=self.password)
        self.topic = Topic.objects.create(subject=<span class="hljs-string">&apos;Hello, world&apos;</span>, board=self.board, starter=user)
        Post.objects.create(message=<span class="hljs-string">&apos;Lorem ipsum dolor sit amet&apos;</span>, topic=self.topic, created_by=user)
        self.url = reverse(<span class="hljs-string">&apos;reply_topic&apos;</span>, kwargs={<span class="hljs-string">&apos;pk&apos;</span>: self.board.pk, <span class="hljs-string">&apos;topic_pk&apos;</span>: self.topic.pk})

<span class="hljs-class"><span class="hljs-keyword">class</span> <span class="hljs-title">LoginRequiredReplyTopicTests</span><span class="hljs-params">(ReplyTopicTestCase)</span>:</span>
    <span class="hljs-comment"># ...</span>

<span class="hljs-class"><span class="hljs-keyword">class</span> <span class="hljs-title">ReplyTopicTests</span><span class="hljs-params">(ReplyTopicTestCase)</span>:</span>
    <span class="hljs-comment"># ...</span>

<span class="hljs-class"><span class="hljs-keyword">class</span> <span class="hljs-title">SuccessfulReplyTopicTests</span><span class="hljs-params">(ReplyTopicTestCase)</span>:</span>
    <span class="hljs-comment"># ...</span>

<span class="hljs-class"><span class="hljs-keyword">class</span> <span class="hljs-title">InvalidReplyTopicTests</span><span class="hljs-params">(ReplyTopicTestCase)</span>:</span>
    <span class="hljs-comment"># ...</span>
</code></pre>
<p>&#x8FD9;&#x91CC;&#x7684;&#x7CBE;&#x9AD3;&#x5728;&#x4E8E;&#x81EA;&#x5B9A;&#x4E49;&#x4E86;&#x6D4B;&#x8BD5;&#x7528;&#x4F8B;&#x57FA;&#x7C7B;<strong>ReplyTopicTestCase</strong>&#x3002;&#x7136;&#x540E;&#x6240;&#x6709;&#x56DB;&#x4E2A;&#x7C7B;&#x5C06;&#x7EE7;&#x627F;&#x8FD9;&#x4E2A;&#x6D4B;&#x8BD5;&#x7528;&#x4F8B;&#x3002;</p>
<p>&#x9996;&#x5148;&#xFF0C;&#x6211;&#x4EEC;&#x6D4B;&#x8BD5;&#x89C6;&#x56FE;&#x662F;&#x5426;&#x53D7;<code>@login_required</code>&#x88C5;&#x9970;&#x5668;&#x4FDD;&#x62A4;&#xFF0C;&#x7136;&#x540E;&#x68C0;&#x67E5;HTML&#x8F93;&#x5165;&#xFF0C;&#x72B6;&#x6001;&#x7801;&#x3002;&#x6700;&#x540E;&#xFF0C;&#x6211;&#x4EEC;&#x6D4B;&#x8BD5;&#x4E00;&#x4E2A;&#x6709;&#x6548;&#x548C;&#x65E0;&#x6548;&#x7684;&#x8868;&#x5355;&#x63D0;&#x4EA4;&#x3002;</p>

                                
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